I am an M.S. student at CVLab in Yonsei University, advised by Prof. Bumsub Ham, and also affiliated with KDST in Kyung Hee University (formerly at KIST), co-advised by Prof. Suhyun Kim.

I am broadly interested in building trustworthy and safe AI that can operate reliably under real-world conditions.

My recent research interests include the following topics:

• Trustworthy and Safe AI: Jailbreak, Safety Evaluation, Benchmark, Human Alignment
• Improving the Capabilities of AI: Transformer-based Understanding, LLM & VLM Reasoning

If you are interested in collaborating with me on research projects, please feel free to send me an email!

🔥 News

• 2026.01:  One paper accepted at ICLR 2026
• 2025.09:  New preprints are out: SceneSplit, ReSafe
• 2025.05:  One paper accepted at ICML 2025
• 2025.02:  New preprint is out: ELITE
• 2024.12:  One paper accepted at AAAI 2025

📝 Publications

• Safety-Aware Image-to-Image Translation without Paired Data
  

  Hyunsoo Kim, Wonjun Lee, Donghyun Kim, Suhyun Kim
  Preprint, 2025

• Jailbreaking on Text-to-Video Models via Scene Splitting Strategy
  

  Wonjun Lee*, Haon Park*, Doehyeon Lee, Bumsub Ham, Suhyun Kim (* Equal Contribution)
  International Conference on Learning Representations (ICLR), 2026
  [Paper] / [Project Page]

• ELITE: Enhanced Language-Image Toxicity Evaluation for Safety
  

  Wonjun Lee*, Doehyeon Lee*, Eugene Choi, Sangyoon Yu, Ashkan Yousefpour, Haon Park, Bumsub Ham, Suhyun Kim (* Equal Contribution)
  International Conference on Machine Learning (ICML) 2025
  [Paper] / [Project Page]

• Maximizing the Position Embedding for Vision Transformers with Global Average Pooling
  

  Wonjun Lee, Bumsub Ham, Suhyun Kim
  Association for the Advancement of Artificial Intelligence (AAAI) 2025
  [Paper] / [Project Page]

📖 Educations

• M.S. in Electrical and Electronic Engineering, Yonsei University
  Advisor: Prof.Suhyun Kim and Prof.Bumsub Ham
  Mar. 2024 - Feb. 2026 (expected)

• B.S. in Software Convergence, Kyung Hee University
  Mar. 2018 - Feb. 2024

💻 Work Experience

• 2024.03 - Present, Student Researcher in the Center for Artificial Intelligence at Korea Institute of Science and Technology (KIST), Seoul, South Korea.
• 2022.12 - 2023.06, Research Intern in the Center for Artificial Intelligence at Korea Institute of Science and Technology (KIST), Seoul, South Korea.